One of President Obama’s better applause lines the other night came when he stepped into the unaccustomed public role of a deregulator:

We got rid of one rule from 40 years ago that could have forced some dairy farmers to spend $10,000 a year proving that they could contain a spill — because milk was somehow classified as an oil. With a rule like that, I guess it was worth crying over spilled milk.

I will note for the record that we had made a bit of a hobbyhorse of EPA’s dairy-oil-spill controls, taking note of them in no fewer than four posts as the sort of regulatory overkill the Obama administration should disavow. House Republicans complain that the president is now putting himself at the head of someone else’s parade, since their members had long urged repeal of the rules and the Obama EPA under administrator Lisa Jackson had dragged its heels about going along. But I’m not going to complain. The ability to get out in front of the other side’s parades served President Bill Clinton well, and I just wish President Obama would use it more often.